a. A simple TV cable converter converts the TV signal of a channel on the cable to
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a. A simple TV cable converter converts the TV signal of a channel on the cable to channel 3 for reception on the TV set. A clever viewer notices that she can pick up the adjacent channel that is normally blacked out by tuning her TV set to channel 4. What does this tell you about the way channels are carried on the cable?
b. The converter on a direct broadcast satellite also converts TV signals to channel 3 for reception. However, changing the TV set to channel 4 does not result in reception of the adjacent channel. Why not? How are the different TV signals carried on the channel?
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Today US cable systems deliver hundreds of channels to some 60 million homes while also providing a growing number of people with highspeed Internet access Some cable systems even let you make telepho...View the full answer
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